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Cato Research Chemicals Inc.??? ?? ??? ?????.

?? ?:Cato Research Chemicals Inc.
??:020-81960175
???:tianwen.zhan@cato-chem.com
??:China
URL: www.cato-chem.com/
? ?? ?:7734
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Buspirone EP Impurity K1075-89-4C9H13NO2
Puberulic acid????99-23-0C8H6O6
Dapagliflozin Impurity 684-???-1-???-2-(4-?????)??1103738-29-9C15H14ClIO
Felodipine Impurity 144-???-2-?????-5-?????95306-64-2C6H8N2O
Tartronic acid?????80-69-3C3H4O5
Dextrorphan-d3 Tartrate Salt1426174-16-4C21H29NO7
1-Methyl-D-tryptophan110117-83-4C12H14N2O2
Empagliflozin Impurity 22517968-35-1C17H17ClO2
2-(2-Hydroxy-1-Oxopropoxy) Propionic Acid2-(2-????-1-??????)?????617-57-2C6H10O5
Mirogabalin Impurity N872165847-73-2C12H19NO2
N-Nitrosopropranolol (Mixture of Isomers)N-??????????84418-35-9
Ceftazidime Impurity 152-??????????-(Z)-(2-??????-4-?)-2-(tert-???????)??????????????89604-92-2C20H22N4O4S3
Cefdinir CP Impurity E178422-39-4C14H15N5O6S2
Azilsartan Impurity 121499167-72-4C23H20N4O4
rac-Finerenone1050477-27-4C21H22N4O3
6-Guanidinohexanoic acid hydrochloride6659-35-4C7H15N3O2
Edaravone impurity 32852539-02-7C13H14N2O2
Dapagliflozin Impurity 106627-69-0C5H10O3
Trimethoprim EP Impurity B30806-86-1C14H16N4O4
Vildagliptin Impurity 2????????2(???????????)1036959-23-5C24H33N5O3
Opicapone Impurity N2952091-17-7C15H10Cl2N4O5
Tenofovir Alafenamide Impurity 211607007-18-0C18H26N10O7P2
Alogliptin Impurity712089611-85-6C18H21N5O2
3-(3-Hydroxyphenyl)propanoic acid3-(3-???????)?????621-54-5C9H10O3
Dapagliflozin Impurity 82461432-27-9C21H25ClO7
Cocarboxylase Tetrahydrate68684-55-9C12H18N4O7P2S.4H2O
Verapamil EP Impurity M???????M141991-89-1C42H57N3O6
Paroxetine Impurity 642361294-43-9C19H19FN2O4
Clavulanate Potassium EP Impurity B3,6-??(2-??????)-2-???????96681-85-5C11H16N2O4
Calcobutrol?????151878-23-8C18H36CaN4O9
(Z)-Ceftizoxime S-Oxide?????S-??????79226-66-7C13H13N5O6S2
Risperidone Impurity 301894509-66-0C23H27FN4O3
Moxifloxacin Impurity 1181395056-42-4C21H24FN3O7
Salbutamol Impurity 271823256-56-9C13H21NO2
Aprepitant Impurity 312348441-63-2C29H25F7N4O3
Sodium 2-(dodecanoyloxy)ethane-1-sulfonate2-???? ????? ???7381-01-3C14H29NaO5S
(R,R)Palonosetron HCl??????HCL135729-75-8C19H24N2O
Sodium sulfate, anhydrous, 99%?? ???7757-82-6Na2SO4
Cefdinir CP Impurity I&J&K&L178422-42-9C14H15N5O6S2
Ziprasidone EP Impurity D1303996-68-0C42H40Cl2N8O3S2
Palbociclib Impurity 325-(????-1-?)???-2-??1082876-26-3C9H14N4
Dronedarone EP Impurity A HCl197431-02-0C27H37ClN2O5S
Tofacitinib Impurity 841675248-18-6C18H25N5O3
Posaconazole Impurity 54(R,S,S,S)2243785-96-6C37H42F2N8O4
Tofacitinib Impurity 913680-71-5C6H5N3O
Carfilzomib Impurity 451660143-42-9C40H57N5O6
Nemonoxacin Impurity 1378746-65-7C20H25N3O4
Nemonoxacin Impurity 62770004-80-1C24H29N3O8
Oxaliplatin EP Impurity E???[(1R,2R)-1,2-????????]??MDiMer??????82398-34-3C12H24N5O5Pt2+
Finerenone Impurity 50(Mixture of Z and E Isomers)1050477-39-8C16H14N2O4
Valsartan Impurity 42443093-86-5C24H28N2O3
Ibrutinib Impurity 182417548-76-4C50H48N12O4
Ilaprazole Impurity 105-???-2-????????2818-66-8C7H7N3S
Palbociclib Impurity 56571189-51-0C25H31N7O2
Nemonoxacin Impurity 3
Sildenafil Impurity 9139756-31-3C16H17ClN4O4S
N-Pivaloyl-L-tyrosineN-????-L-33019-85-1C14H19NO4
Pitavastatin Impurity 93254452-96-5C25H24FNO4
Brexpiprazole Impurity 212059954-32-2C17H21Cl2NO2
α-Apo-oxytetracycline ( Oxytetracycline EP Impurity D )18695-01-7C22H22N2O8
Rocuronium Impurity 1614935-81-0C19H28O
N-(2-Bromophenyl)nitrosamide876497-67-5C6H5BrN2O
Isavuconazole Impurity N2 HCl2169911-47-9
Cefotaxime EP Impurity G2489535-06-8C22H22N8O9S3
Sitagliptin Triazecine Analog2805078-75-3C16H13F6N5O2
Bupropion Impurity 493-????? ?535-80-8C7H5ClO2
Cumene Hydroperoxide technical grade, 80%???????????80-15-9C9H12O2
Posaconazole Impurity 52???????-8161532-56-5C32H32F2N8O3
Rivaroxaban Impurity 33898543-06-1C14H17N3O4.ClH
Azilsartan Impurity 11586011-04-2C26H25N3O4
Carfilzomib Impurity 462049025-49-0C40H57N5O7
Tirofiban Impurity 79158808-86-7C22H36N2O5S
Flunisolide Hydrate???????77326-96-6C24H31FO6
Amlodipine Impurity 562418591-36-1C20H23ClN2O6
Edaravone impurity 311322767-62-3C13H17N2NaO5S
Nemonoxacin Impurity 2
Quetiapine EP Impurity D???????????945668-94-0C30H24N4S2
Olaparib Impurity 2557260-71-6C9H18N2O2
2-Cyanoethyl acetate5325-93-9C5H7NO2
Tofacitinib Impurity 71134965-85-8C12H7ClN6
Empagliflozin Impurity N6333359-90-3C20H23ClO6
Topiramate EP Impurity D950603-46-0C25H39NO15S
1-Palmitoyl-sn-glycero-3-phosphocholine1-????-SN-????-3-?????17364-16-8C24H50NO7P
6-Methyl-1,4-naphthoquinone6-??-1,4-?????605-93-6C11H8O2
Tofacitinib Impurity 553680-69-1C6H4ClN3
Valaciclovir EP Impurity N2519847-26-6C19H25N11O5
Amisulpride EP Impurity B Hydrobromide2437254-41-4C16H26BrN3O4S
L-alpha-Phosphatidyl-L-serine51446-62-9C42H82NO10P
Esomeprazole Impurity 1132-?????-3,5-??????-4-?220771-03-9C8H10ClNO
Simvastatin EP Impurity C?????????210980-68-0C25H36O4
Tenofovir disoproxil Impurity 11432630-26-6C20H22N5O16P
Rivaroxaban Impurity 21365267-36-2C36H36N6O10
Rosuvastatin EP Impurity M(Sodium Salt)
Atorvastatin Cyclic Fluorophenyl Impurity(Sodium Salt)1193817-52-5C33H35FN2O7
Bumetanide Impurity N31236290-34-8C21H28N2O5S
Stearylpyridinium Chloride1-?????????????3165-81-9C23H42N.Cl
Empagliflozin Impurity 1402781890-39-7C24H29ClO8
All-rac-alfa-Tocopheryl Acetate EP Impurity B (and Diastereoisomers)1560716-42-8C31H52O3
Arbidol Impurity 4340945-69-5C15H16BrNO4
(S)-Amlodipine-d41346617-19-3C20H25ClN2O5
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